Crosstree for supporting electric conductors.



No. 848,269. PATENTED MARES, 1907.

' E. W. SMITH. @Ross TEEE EUR SUPPORTING ELECTRIC GONDUGTOES.

APPLICATION' FILED JULYSI. 1906.

UNFFE ilA ATF@ PATENT FFlf@E. nARR'iT w. SMiTH, oRYwoRcRsrRa MASSAcHUSRTTS.

CROSSTREE FQR SUPPORTlNC- ELECTRIC CONDUCTCRS.

Specification of Letters Patent.

Application filed July 31,1906. Serial No. 328.505.

No. 848,269. Patented March 26, 1907.

./`r1 all wiz/0777, it Harry concern: L

Be it known that l, HARRY W SMrrH, a citizen of the United States, residing at Vorcester, in the county of Worcester and State of Massachusetts, have invented cery tain new and useful Improvements in Crossg trees for Supporting Electric Conductors, of l which the following is a specification. l The invention to be hereinafter described i l Referring to the drawings, Figs. l to 4, as illustrating one practical -form of the invention, A represents the crosstree, formed of metal and strengthened to resist transverse bending forces by being made of angular form. In the present instance the cross-sectional form of the crosstree is that of the angle-iron, wherebyT the horizontal portion or 'flange A may serve to effectually resist the pulling strains of the conductors in a horizontal direction, while the vertical portion or Harige A2 may serve to directly resist the downward pull oL the conductors-as, for instance, where the crosstrees are on different levels.

Projecting upward from the crosstree are the insulator supports, which as a whole may be identified by the letter B. These supports are disposed at suitable intervals apart and are integral with the crosstree itself, said supports being formed by bending upward a portion of the material of the crosstree.

In the form of the insulator-supports shown by Figs. l and a the horizontal flange A has transverse portions thereof turned upward. These lnay be formed in any desired manner, as by punching or cutting the flange along the line a, leaving the base portion of the tongue thus produced integral with the flange and turning the free end up. The metal of the upward-projecting tongue is then provided with suitable devices-as, for instance, screw-thread b-for engaging and holding the insulators c, Fig'. 6.

In Fig. 5 the insulator-support is illus trated as formed from two tongues d d, cut or punched along the lines d d d', leaving the adjacent portions of each integral with the crosstree. The free ends of these tongues are then turned upward and brought together, as shown in Fig. 5, appropriate securing means, such as 'screw-threads, being provided thereon for engaging and holding the insulators.

It may be desirable in some cases to round off the side edges b2, Fig. 3, or d2, Fig. 5, of the insulator-supports by bending these edges about the body of the support.

In the illustrations of the two forms of the device Selected for exploiting the invention it will be noted that the insulator-support is an integral part of the crosstree and that in the production of such supports the fiange of the crosstree is not materially weakened, be cause the cut for producing the support does i not extend through the free edge of the relates to crosstrees for supporting electric wires, and while applicable to the support of any character of suspended electric wire the embodiment of the invention herein selected for illustration and description has more particular reference to the support of telegraph or telephone and like electric conductors.

In the support of electric conductors of the type herein generally Ireferred to a glass or other insulating support is connected to a crosstree by means of a pin or stud, and the conductor as it passes this station is secured thereto by appropriate means. These crosstrees and pins or studs as heretofore produced have been open to various objections incident either to the materials employed, the separate formation of the various parts, complication of structure, or the labor and expense of manufacture.

With these and other defects in view the object of the present invention is to provide a crosstree for the support of electric conductors wherein the parts shall be simple in construction, strong and durable in withstanding the various strains to which they are subjected, and economical both in construction and installation.

The invention consists of the parts and combinations to be hereinafter fully described and then definitely pointed out in the claims.

In the drawings, which serve to illustrate one or two different forms the invention may assume and without attempting to show them all, Figure l is a front elevation of a crosstree embodying the subject-matter of the present invention. Fig. 2 is a plan view thereof. Fig. 3 is an end view of the crosstree of Figs. l and 2. Fig. 4 is a perspective detail view, parts being broken away, to show more particularly the formation of the insulator-supports. Fig. 5 is a like perspective detail view of a slightly-modified form of the device, and Fig. 6 shows the crosstree and its insulator-supports secured to a telegraph or like pole for suspending conductors in an overhead system.

ICO

Ilnnge. This is e desirable construction, but not en essential ol the inifention7 tor its use in seine Connections would not be seriously inrpaired ili the tongues forming the supports Were cut through to the edge of the llnnge. It is likewise obvious also that the tongue inight be eut from either flange und turned upvv'ard, as described.

To connect the erosstree to it support-es, for instance, e pole D, Fig. Ghappropriete end suitable ineens inejfbe ernpleyerw-os, ter instance, boltsb'ffor other ;ievices, Which be pesserfl tluough suitable holesff in the Vertical flange, Fig. l.

Having thus describel Inj' invention, what I eletiin7 unil desire to secure by Letters Petent, is

l. A device for supporting electric conrluctors, comprising :i Inetfzl c'rosstree enil insuletor-supports proj ecting from snifl tree :rn-:l 'formed .integral therewith.

2. A crosstrec Vlier supporting electric conj duetors7 seid tree forrnerl of inetol Al'lmiges nrl ranged at an ongle to erich other, and insuklirtor-supports loinierl integral With one ol" seid llenges andv projecting therelroin` 3. A crosstree Vfor supporting electric conductors, seid tree l'orinerl of inetnl, and nn insulator-support vformed by a portion ol seid inetol bent to project therelroin.

4C. A crosstree lfor supporting electric conductors, said tree formed of metal and en insulator-support formed by e portion ol.1 seid metal bent to project therelroni, sind insulator-support beingl proviilerl `with ineens Vlor securing the insulzitor thereto.

5. A crosstree lfor supporting electric con- `zlucters, sniti tree lorineil ol metal, :1n-1l :in insulirtor-support formed by it portion ol szrizl inetril bent to project tlurel'roni, sei-:l insulii* tor-support being proviilezl with screwthrerizls VFor connecting the insulator thereto.

In testimony whereof l eliix m5Y signa'iture i in presence olI two witnesses. HARRY lV. Srlll'lllV 'itiiesses:

E. G. BoU'rnLLn, M. T. UniMMrNs. 

